CN216131283U - Transmission control assembly for a transmission system - Google Patents

Abstract

The utility model provides a transmission control assembly for a transmission system, which comprises at least one control piece and a driven wheel, wherein the control piece comprises a pivot part and two driving arms respectively extending outwards from the pivot part, the two driving arms of the control piece embrace the driven wheel, the pivot part of the control piece is arranged in a pivoting way, so that the pivot part can drive the driven wheel to move axially through the two driving arms of the control piece and can move the driven wheel between a first position and a second position.

Description

Transmission control assembly for a transmission system

Technical Field

The present invention relates to a transmission system, and more particularly, to a transmission control assembly for a transmission system, wherein the transmission control assembly of the present invention can control the transmission of power (or torque) output by a power system, wherein the transmission system is adapted to transmit the power (or torque) output by the power system (e.g., a driving motor) of a self-propelled mower to wheels (e.g., front wheels of the self-propelled mower) of the self-propelled mower to drive the wheels of the self-propelled mower to move.

Background

The transmission system of the self-propelled mower is generally used for transmitting the power (or torque) output by the power system of the self-propelled mower to the working mechanism of the self-propelled mower so as to drive the working mechanism to work, such as driving wheels of the self-propelled mower to move. The drive system of the self-propelled lawnmower often involves a change in power vector, control of power transmission, and the like in the process of transmitting power (or torque).

The power system of most self-propelled mowers transmits the driving force generated by a driving member (e.g., a driving shaft) to a working mechanism, and more precisely, to a driven member (or a driven shaft) of the working mechanism. However, in order to change the vector direction of the driving force output by the power system of the self-propelled mower, a corresponding transmission assembly is further arranged between the driving part and the driven part. In addition, in practical application, the transmission of the driving force from the driving member to the power system output should be controllable. In other words, the transmission assembly disposed between the driving member and the driven member should also be capable of adjusting, and even cutting off, the transmission or transmission of the driving force output by the power system between the driving member and the driven member. In order to realize the functions, most of the existing transmission systems have complex structures, various types and quantities of components, high manufacturing difficulty and high cost.

Chinese utility model patent application No. CN 01234094.4 discloses a transmission system arranged between a driving motor and a rear wheel of a self-propelled mower, wherein the transmission system can toggle the fixing plate 45 of the transmission system through the shift lever 65 thereof, so that the transmission system can transmit the driving force generated by the driving motor of the self-propelled mower to the rear wheel 4 of the self-propelled mower and drive the rotation thereof. Therefore, the transmission system provided in the utility model can transmit the driving force generated by the driving motor of the self-propelled mower to the rear wheel 4 of the self-propelled mower through the driving shaft 10 and drive the rotation of the driving force under the control of the shift lever 65. However, the utility model provides a transmission system that sets up between self-propelled lawn mower's driving motor and rear wheel 4 has a lot of defects: first, the shift lever 65 controls the engagement and disengagement of the gear 15 with and from the driving shaft 10 by the deformation force applied to the fixing piece 45. When the stator 45 is fatigued and the resulting deformation force is insufficient to push the two sliding cones along the drive shaft 10, the toggle lever 65 will not control the engagement and disengagement of the gear 15 with the drive shaft 10. Secondly, the utility model provides a set up the transmission system's between self-propelled lawn mower's driving motor and rear wheel drive shaft 10 component or part figure too much, will inevitably lead to its manufacturing cost to be high, stability and reliability are relatively poor. Finally, the connection between the arc 651 of the lever 65 and the stator 45 of the transmission system is loose, and the engagement is too low, which may cause the arc 651 of the lever 65 to slip off the stator 45 when the user is over-using to rotate the lever 65.

SUMMERY OF THE UTILITY MODEL

The main advantage of the present invention is to provide a transmission control assembly for a transmission system, wherein the transmission control assembly for the transmission system can control the transmission of power (or torque) output by a power system, wherein the transmission system is adapted to transmit the power (or torque) output by the power system (such as a driving motor) of a self-propelled mower to wheels (such as a front wheel of the self-propelled mower) of the self-propelled mower to drive the wheels of the self-propelled mower to move.

Another advantage of the present invention is to provide a transmission control assembly for a transmission system, wherein the transmission control assembly for a transmission system of the present invention can control the transmission system for a self-propelled mower in a first transmission state and a second transmission state, wherein when the transmission system is in the first transmission state, the transmission system can transmit power output by the power system of the self-propelled mower to wheels of the self-propelled mower to drive the wheels of the self-propelled mower to move; when the transmission system is in the second transmission state, the transmission of the power output by the power system of the self-propelled mower to the wheels of the self-propelled mower is cut off.

Another advantage of the present invention is to provide a transmission control assembly for a transmission system, wherein the transmission control assembly for a transmission system of the present invention controls the transmission state of the transmission system for a self-propelled mower by controlling the engagement of the driven wheels thereof with the driving wheels of the transmission system.

It is a further advantage of the present invention to provide a transmission control assembly for a transmission system that controls shifting of the transmission system of the present invention between the first transmission state and the second transmission state.

Another advantage of the present invention is to provide a transmission control assembly for a transmission system, in which an operating handle and a control member of the transmission control assembly for a transmission system of the present invention are fixedly coupled to each other, and a pivot portion of the control member is stably held to prevent the misalignment, inclination, or deviation thereof, thereby providing reliability of the transmission system of the present invention.

Accordingly, in accordance with an embodiment of the present invention, a transmission control assembly for a transmission system of the present invention having at least one of the foregoing advantages includes:

at least one control member; and

a driven wheel, the control member including a pivot portion and two driving arms extending outwardly from the pivot portion, wherein the two driving arms of the control member embrace the driven wheel, wherein the pivot portion of the control member is pivotally disposed such that the pivot portion is capable of driving the driven wheel to move axially via the two driving arms of the control member and moving the driven wheel between a first position and a second position.

Preferably, the driven wheel further comprises a first limit bearing and a second limit bearing, wherein the driven wheel is disposed between the first limit bearing and the second limit bearing, wherein the first limit bearing and the second limit bearing each extend inwardly.

Preferably, the driven wheel is driven to move to the first position when the pivot portion of the control member is rotated such that the two drive arms of the control member are perpendicular to the axis of rotation of the driven wheel.

Preferably, the control member further comprises a drive end, wherein the drive end extends outwardly from the pivot portion in an axial direction of the pivot portion.

Preferably, the control device further comprises an operating handle, wherein the operating handle is arranged at the driving end of the control member, so that the pivot part of the control member can be driven to rotate by the operating handle and control the driven wheel to move between the first position and the second position.

Preferably, the driven wheel forms an annular groove, wherein the two driving arms of the control member are respectively disposed in the annular groove to prevent the two driving arms of the control member from slipping off the driven wheel.

Preferably, the driven wheel has two engagement grooves, wherein the engagement grooves are provided on an inner wall of the driven wheel.

Preferably, the driven wheel forms a set of driven teeth, wherein the driven teeth of the driven wheel form a driven face, wherein the angle of inclination β of the driven face is less than 90 degrees.

Preferably, the driving end of the control member forms a mounting portion, and the operating handle forms a mounting hole, wherein the shape and size of the mounting portion of the driving end are designed according to the shape and size of the mounting hole of the operating handle.

Preferably, the mounting portion of the driving end is cross-shaped, quincunx-shaped, star-shaped or saw-toothed.

The above and other advantages of the utility model will be more fully apparent from the following description and drawings.

The above and other advantages and features of the present invention will be more fully apparent from the following detailed description of the utility model, the accompanying drawings and the claims.

Drawings

Fig. 1 is a perspective view of a drive system for a self-propelled lawn mower according to an embodiment of the present invention described above.

Fig. 2 is an assembly view of a drive system for a self-propelled lawn mower according to an embodiment of the present invention as described above.

Fig. 3 is a partial cross-sectional view of a drive system for a self-propelled lawn mower according to an embodiment of the present invention as described above.

Fig. 4A is a perspective view of the transmission assembly of the transmission system for a self-propelled mower according to the embodiment of the present invention, wherein the driven wheel is shown in a second position and the driven wheel is separated from the driving wheel.

Fig. 4B is another perspective view of the drive assembly of the drive system for the self-propelled mower according to the embodiment of the present invention described above.

Fig. 4C is a cross-sectional view of the drive assembly of the drive system for the self-propelled mower according to the embodiment of the present invention described above.

Fig. 4D is another perspective view of the drive assembly of the drive system for the self-propelled mower according to the embodiment of the present invention described above.

Fig. 5 is a cross-sectional view of a drive system for a self-propelled lawn mower according to an embodiment of the present invention as described above.

Fig. 6 is another partial cross-sectional view of a drive system for a self-propelled lawn mower according to an embodiment of the present invention as described above.

Fig. 7A is a cross-sectional view of the housing of the drive train for the self-propelled mower according to the embodiment of the present invention described above.

Fig. 7B is a bottom view of the upper housing of the housing for the drive train of the self-propelled mower according to the embodiment of the present invention described above.

Fig. 7C is a bottom view of the lower housing of the housing for the drive train of the self-propelled mower according to the embodiment of the present invention described above.

Fig. 8 is a perspective view of a control member for the drive train of the self-propelled mower according to the embodiment of the present invention described above.

Fig. 9 is a partially enlarged view of the drive wheel and the driven wheel of the transmission system for the self-propelled mower according to the embodiment of the present invention described above.

Fig. 10 is a perspective view of the drive assembly of the drive system for a self-propelled lawn mower according to the embodiment of the present invention described above, wherein the driven wheel is shown in a first position and the driven wheel is engaged with the drive wheel.

Detailed Description

The following description is provided to enable any person skilled in the art to practice the utility model. Other obvious substitutions, modifications and variations will occur to those skilled in the art. Accordingly, the scope of protection of the utility model should not be limited by the exemplary embodiments described herein.

It will be understood by those of ordinary skill in the art that, unless specifically indicated herein, the terms "a" and "an" should be interpreted as meaning that "at least one" or "one or more" may mean that, in one embodiment, one element may be present in one number, and in another embodiment, the element may be present in multiple numbers.

It will be understood by those of ordinary skill in the art that unless otherwise specified herein, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positions illustrated in the drawings for convenience in describing the utility model, and do not indicate or imply that the referenced devices or elements must have a particular orientation or position. Accordingly, the above terms should not be construed as limiting the present invention.

Referring to fig. 1 to 10 of the drawings, a transmission system for a self-propelled mower according to an embodiment of the present invention is illustrated, wherein the transmission system for a self-propelled mower comprises at least one driving shaft 10, at least one driven shaft 20 and a transmission assembly 30, wherein the transmission assembly 30 comprises at least one driving wheel 31 and a driven wheel 32, wherein the driving wheel 31 and the driven wheel 32 are both sleeved on the driven shaft 20, wherein the driving wheel 31 is arranged to rotate freely around the driven shaft 20, wherein the driving shaft 10 is arranged to drive the driving wheel 31 to rotate around the driven shaft 20, and a rotation axis a of the driving shaft 10 is perpendicular to a rotation axis B of the driving wheel 31, wherein the driven wheel 32 is arranged to drive the driven shaft 20 to rotate and to move axially along the driven shaft 20, and when the driven wheel 32 moves to a first position, the driven pulley 32 is engaged with the driving pulley 31; when the driven pulley 32 moves to a second position, the driven pulley 32 is disengaged from the driving pulley 31. In other words, when the driven wheel 32 moves to the first position, the driven wheel 32 is engaged with the driving wheel 31, and when the driving shaft 10 transmits the driving force (or torque) of the driving motor of the self-propelled mower to the driving wheel 31, the driving wheel 31 drives the driven wheel 32 to rotate synchronously, so that the driven wheel 32 drives the driven shaft 20 to rotate synchronously and drives the working mechanism of the self-propelled mower to work, such as driving the wheels of the self-propelled mower to move. Accordingly, when the driven wheel 32 moves to the first position, the driven wheel 32 is engaged with the driving wheel 31, and the driving shaft 10 can transmit the driving force (or torque) of the driving motor of the self-propelled mower to the driving wheel 31, the transmission system for the self-propelled mower of the present invention is in a first transmission state; when the driven wheel 32 moves to the second position, the driven wheel 32 is disengaged from the driving wheel 31, and the driving shaft 10 stops transmitting the driving force (or torque) of the driving motor of the self-propelled mower to the driving wheel 31, so that the transmission system for the self-propelled mower of the present invention is in a second transmission state. For example, as shown in fig. 4A to 4C, the driving shaft 10 is engaged with the driving wheel 31, so that when the driving shaft 10 is driven to rotate, the driving wheel 31 can be driven to rotate. Further, since the rotation axis a of the drive shaft 10 is perpendicular to the rotation axis B of the drive wheel 31, the vector of the driving force from the power train of the self-propelled mower, which is transmitted from the drive shaft 10 to the drive wheel 31, changes accordingly. As shown in fig. 4A to 4C, preferably, the driving shaft 10 is embodied in a rod shape having a transmission thread on an outer surface thereof, such as a worm, etc., the driving wheel 31 is embodied in a gear shape having a transmission thread on an outer surface thereof, and the transmission thread of the driving shaft 10 is matched (or fitted) with the slave transmission thread of the driving wheel 31, thereby enabling the driving wheel 31 and the driving shaft 10 to be engaged with each other. It should be noted that the driving wheel 31 is always engaged with the driving shaft 10. That is, the driving wheel 31 always rotates with the rotation of the driving shaft 10.

As shown in fig. 1 and 2, and 5 to 7C of the drawings, the transmission system for a self-propelled mower according to the embodiment of the present invention further includes a housing 40, the driven shaft 20 includes a main body portion 21 and two output ends 22, 23 respectively extending outward from the main body portion 21, wherein the housing 40 forms a receiving cavity 401 and two through holes 402, 403 respectively communicating with the receiving cavity 401, wherein the main body portion 21 of the driven shaft 20 is disposed in the receiving cavity 401 of the housing 40, the two output ends 22, 23 of the driven shaft 20 respectively penetrate through the two through holes 402, 403 of the housing 40, wherein the driving wheel 31 and the driven wheel 32 are both received in the receiving cavity 401 of the housing 40, and wherein the driving wheel 31 and the driven wheel 32 are both fitted over the main body portion 21 of the driven shaft 20.

As shown in fig. 4C and 5 of the drawings, the axle shaft 10 of the transmission system for the self-propelled mower according to the embodiment of the present invention forms a first end 11, a second end 12 and a driving portion 13 extending between the first end 11 and the second end 12, the housing 40 forms a mounting opening 404, wherein the mounting opening 404 of the housing 40 is communicated with the accommodating chamber 401, wherein the first end 11 of the axle shaft 10 protrudes through the mounting opening 404, and the driving portion 13 and the second end 12 of the axle shaft 10 are accommodated in the accommodating chamber 401 of the housing 40. As shown in fig. 4C and 5 of the drawings, the first end 11 and the second end 12 of the driving shaft 10 extend outward from the driving portion 13, respectively. Illustratively, the first end 11 of the axle shaft 10 is connected to a driving wheel 60, the driving wheel 60 is connected to the driving motor of the self-propelled mower, and the driving wheel 60 is configured to transmit power output from the driving motor of the self-propelled mower to the first end 11 of the axle shaft 10.

As shown in fig. 1 and 2, and fig. 5 to 7C of the drawings, the transmission system for a self-propelled mower according to the embodiment of the present invention further includes a first bearing 51 and a second bearing 52, wherein the first bearing 51 is disposed on an inner wall of the mounting opening 404, the second bearing 52 is disposed on an inner wall of the housing 40, wherein the first end 11 of the axle shaft 10 is rotatably disposed on the first bearing 51, and the second end 12 of the axle shaft 10 is rotatably disposed on the second bearing 52.

As shown in fig. 2, 5 to 10 of the drawings, the transmission assembly 30 of the transmission system for a self-propelled mower according to the embodiment of the present invention further includes at least one control member 33, wherein the control member 33 includes a pivot portion 331 and two driving arms 332, 333 extending outwardly from the pivot portion 331, respectively, wherein the two driving arms 332, 333 of the control member 33 embrace the driven wheel 32, and wherein the pivot portion 331 of the control member 33 is pivotally disposed in the accommodating cavity 401 of the housing 40, so that the pivot portion 331 can drive the driven wheel 32 to move axially along the driven shaft 20 through the two driving arms 332, 333 of the control member 33. It will be appreciated that as the pivot portion 331 of the control member 33 pivots, the driven wheel 32 moves axially along the driven shaft 20, thereby causing the driven wheel 32 to move axially along the driven shaft 20 to the first and second positions. Accordingly, the first position is closer to the drive wheel 31 than the second position. Preferably, when the pivot portion 331 of the control member 33 is rotated until the two driving arms 332 and 333 of the control member 33 are perpendicular to the axial direction of the driven shaft 20, the driven wheel 20 is driven to move along the driven shaft 20 to the first position, so that the driven wheel 32 is engaged with the driving wheel 31. Accordingly, when the pivot portion 331 of the control member 33 is rotated until the two driving arms 332 and 333 of the control member 33 are perpendicular to the axial direction of the driven shaft 20, the driven wheel 32 is engaged with the driving wheel 31 to prevent the two driving arms 332 and 333 of the control member 33 from affecting the rotation of the driven wheel 32 and the driving wheel 31.

As shown in fig. 1 and 2, and fig. 5 to 7C of the drawings, the housing 40 of the transmission system for the self-propelled mower according to the embodiment of the present invention further forms an operation opening 405, and the control member 33 further includes a driving end 334, wherein the driving end 334 extends from an end of the pivoting portion 331 outward in the axial direction of the pivoting portion 331 and protrudes out of the operation opening 405 of the housing 40.

As shown in fig. 1 and 2, and fig. 5 to 7C of the drawings, the transmission assembly 30 of the transmission system for the self-propelled mower according to the embodiment of the present invention further includes a limiting portion 35, the control member 33 further includes a pivoting end 335, wherein the limiting portion 35 is disposed on an inner wall of the housing 40, and the limiting portion 35 forms a limiting groove 350, the pivoting end 335 of the control member 33 extends from the other end of the pivoting portion 331 outward in the axial direction of the pivoting portion 331, wherein the pivoting end 335 of the control member 33 is matched with the limiting groove 350, so that the pivoting end 335 of the control member 33 can be disposed in the limiting groove 350 and the pivoting portion 331 of the control member 33 is always located in a proper position. Preferably, the stopper 35 is integrally formed with the inner wall of the housing 40.

As shown in fig. 1 and 2, and fig. 5 to 7C of the drawings, the transmission assembly 30 of the transmission system for the self-propelled mower according to the embodiment of the present invention further includes an operating handle 34, wherein the operating handle 34 is disposed at the driving end 334 of the control member 33, so that the pivoting portion 331 of the control member 33 can be driven to rotate by the operating handle 34 and control the driven wheel 32 to move between the first position and the second position.

As shown in fig. 1 and 2, and fig. 5 to 7C of the drawings, the driving end 334 of the control member 33 of the transmission assembly 30 for the self-propelled mower according to the embodiment of the present invention forms a mounting portion 3341, and the operating handle 34 forms a mounting hole 340, wherein the shape and size of the mounting portion 3341 of the driving end 334 are designed according to the shape and size of the mounting hole 610 of the operating handle 34, so that the mounting portion 3341 of the driving end 334 is fitted into the mounting hole 610 of the operating handle 34 and the mounting portion 3341 of the driving end 334 is fixedly connected to the operating handle 34. Preferably, the mounting portion 3341 of the driving end 334 has a cross shape, a quincunx shape, a star shape or a saw-tooth shape to enhance the reliability of the connection between the mounting portion 3341 of the driving end 334 and the mounting hole 610 of the operating handle 34.

As shown in fig. 2, 5 to 10 of the drawings, the driven wheel 32 of the transmission assembly 30 of the transmission system for the self-propelled mower according to the embodiment of the present invention forms an annular groove 320, wherein the two driving arms 332 and 333 of the control member 33 are respectively disposed in the annular groove 320, and at least one of the two driving arms 332 and 333 is disposed to press against the inner wall of the annular groove 320, so that the two driving arms 332 and 333 of the control member 33 embrace the driven wheel 32, thereby preventing the two driving arms 332 and 333 of the control member 33 from slipping off the driven wheel 32.

As shown in fig. 2, 5 to 10 of the drawings, the driven wheel 32 of the transmission assembly 30 for the transmission system of the self-propelled mower according to the embodiment of the present invention has two engaging grooves 3210, wherein the engaging grooves 3210 are disposed on an inner wall of the driven wheel 32, the driven shaft 20 further includes two engaging portions 24, wherein the engaging portions 24 protrude outward from the main body portion 21 of the driven shaft 20, and wherein the engaging portions 24 are configured to engage with the engaging grooves 3210, so that the driven wheel 32 can drive the driven shaft 20 to rotate synchronously.

As shown in fig. 1 and 2, and fig. 5 to 7C of the drawings, the housing 40 of the drive system for the self-propelled mower according to the embodiment of the present invention includes a first housing 41 and a second housing 42, wherein the accommodating chamber 401, the through hole 402, and the through hole 403 of the housing 40 are formed between the first housing 41 and the second housing 42, and the mounting opening 404 and the operating opening 405 are formed in the first housing 41.

As shown in fig. 4A and 10 of the drawings, the driving wheel 31 of the transmission assembly 30 of the transmission system for the self-propelled mower according to the embodiment of the present invention forms a set of driving teeth 311, and the driven wheel 32 forms a set of driven teeth 321, wherein the driving wheel 31 and the driven wheel 32 are configured to mesh together through the driving teeth 311 and the driven teeth 321. Further, the driving tooth 311 of the driving wheel 31 forms a driving surface 3111, and the driven tooth 321 of the driven wheel 32 forms a driven surface 3211, when the driving wheel 31 rotates to drive the driven wheel 32 to rotate, the driving wheel 31 applies force to the driven surface 3211 of the driven wheel 32 through the driving surface 3111 and drives the driven wheel 32 to rotate. It can be understood that the inclination angle α of the driving surface 3111 and the inclination angle β of the driven surface 3211 are both smaller than 90 degrees, so that when the driving wheel 31 drives the driven wheel 32 to rotate, a user can still easily drive (or toggle) the driven wheel 32 to move away from the driving wheel 31 along the axial direction of the driven shaft 20 through the control member 33 and disengage the driven wheel 32 from the driving wheel 31. Preferably, the inclination angle α of the driving surface 3111 and the inclination angle β of the driven surface 3211 are the same.

As shown in fig. 1 to 7C of the drawings, the transmission system for a self-propelled mower according to the embodiment of the present invention further includes a first limit bearing 71 and a second limit bearing 72, wherein the two output ends 22, 23 of the driven shaft 20 are rotatably disposed at the first limit bearing 71 and the second limit bearing 72, respectively. Further, the first limit bearing 71 and the second limit bearing 72 are respectively disposed on the inner walls of the two through holes 402, 403 of the housing 40. In other words, the first limit bearing 71 and the second limit bearing 72 are disposed between the first housing 41 and the second housing 42 of the outer shell 40. Preferably, the driving wheel 31 and the driven wheel 32 are respectively disposed between the first limit bearing 71 and the second limit bearing 72, and the first limit bearing 71 and the second limit bearing 72 respectively extend inward, so as to maintain the driving wheel 31 and the driven wheel 32 at a proper position in the accommodating cavity 401 of the housing 40. Preferably, the inner walls of the two through holes 402, 403 of the housing 40 are thickened so that the first and second limit bearings 71, 72 are stably supported. More preferably, the housing 40 further comprises a set of ribs 43, wherein the ribs 43 are respectively disposed on the outer walls of the two through holes 402, 403 of the housing 40 to reinforce the support of the first limit bearing 71 and the second limit bearing 72.

As shown in fig. 1 to 10 of the drawings, according to an embodiment of the present invention, the present invention further provides a transmission control assembly for a transmission system, wherein the transmission control assembly includes at least one control member 33 and a driven wheel 32, wherein the control member 33 includes a pivot portion 331 and two driving arms 332, 333 extending outward from the pivot portion 331, respectively, the driven wheel 32 is adapted to be sleeved on a driven shaft 20, wherein the two driving arms 332, 333 of the control member 33 embrace the driven wheel 32, the driven wheel 32 is configured to be capable of moving axially (along the driven shaft 20), wherein the pivot portion 331 of the control member 33 is pivotally disposed (in the accommodating cavity 401 of the housing 40) so that the pivot portion 331 can drive the driven wheel 32 to move axially along the driven shaft 20 through the two driving arms 332, 333 of the control member 33 and the driven wheel 32 is close to the pivot portion 331 or far from the pivot portion 331, thereby enabling the driven wheel 32 to move between the first position and the second position. Accordingly, as the pivot portion 331 of the control member 33 pivots, when the driven wheel 32 moves axially (along the driven shaft 20) to a first position, the driven wheel 32 is closest to the pivot portion 331; when the driven wheel 32 moves axially (along the driven shaft 20) to a second position, the driven wheel 32 is farthest from the pivot portion 331. It can be understood that when a driving wheel 31 is sleeved on the driven shaft 20 at the first position, and when the driven wheel 32 moves axially along the driven shaft 20 to the first position, the driving wheel 31 and the driven wheel 32 can be engaged together, so that the driven wheel 32 is driven to rotate by the driving wheel 31. Preferably, when the driven wheel 32 moves to the first position, the driving arms 332 and 333 of the control member 33 are perpendicular to the rotation axis of the driven wheel 32, and the driven wheel 32 is closest to the pivot portion 331.

As shown in fig. 1 and 2, and fig. 5 to 7C of the drawings, the transmission control assembly for a transmission system according to the embodiment of the present invention further includes an operating handle 34, wherein the operating handle 34 is disposed at the driving end 334 of the control member 33, so that the pivoting portion 331 of the control member 33 can be driven to rotate by the operating handle 34 and control the driven wheel 32 to move between the first position and the second position.

As shown in fig. 1 and 2, and fig. 5 to 7C of the drawings, the transmission control assembly for a transmission system according to the embodiment of the present invention further includes a limiting portion 35, the control member 33 further includes a pivot end 335, wherein the limiting portion 35 is disposed on an inner wall of the housing 40, and the limiting portion 35 forms a limiting groove 350, the pivot end 335 of the control member 33 extends from the other end of the pivot portion 331 outward along an axial direction of the pivot portion 331, wherein the pivot end 335 of the control member 33 is matched with the limiting groove 350, so that the pivot end 335 of the control member 33 can be disposed in the limiting groove 350 and the pivot portion 331 of the control member 33 is always located in a proper position. Preferably, the stopper 35 is integrally formed with the inner wall of the housing 40.

It will be understood by those of ordinary skill in the art that the embodiments described above and shown in the drawings are merely for illustrative purposes and are not intended to limit the present invention. All equivalent implementations, modifications and improvements that are within the spirit of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. A drive control assembly for a drive train adapted for use with a walk-behind mower, comprising:

at least one control member; and

a driven wheel, the control member including a pivot portion and two driving arms extending outwardly from the pivot portion, wherein the two driving arms of the control member embrace the driven wheel, wherein the pivot portion of the control member is pivotally disposed such that the pivot portion is capable of driving the driven wheel to move axially via the two driving arms of the control member and moving the driven wheel between a first position and a second position.

2. The transmission control assembly of claim 1, further comprising a first limit bearing and a second limit bearing, wherein the driven wheel is disposed between the first limit bearing and the second limit bearing, wherein the first limit bearing and the second limit bearing each extend inwardly.

3. The transmission control assembly according to claim 2, wherein the driven wheel is driven to move to the first position when the pivot portion of the control member is rotated such that the two drive arms of the control member are perpendicular to the axis of rotation of the driven wheel.

4. The transmission control assembly of claim 3, wherein the control member further includes a drive end, wherein the drive end extends outwardly from the pivot portion in an axial direction of the pivot portion.

5. The transmission control assembly of claim 4, further comprising an operating handle, wherein the operating handle is disposed at the drive end of the control member such that the pivot portion of the control member is rotatable by the operating handle and controls the driven wheel to move between the first position and the second position.

6. The transmission control assembly of claim 5, wherein the driven wheel defines an annular groove, and wherein the two drive arms of the control member are each disposed within the annular groove to prevent the two drive arms of the control member from slipping off the driven wheel.

7. The drive control assembly of claim 1, wherein the driven wheel has two engagement slots, wherein the engagement slots are disposed on an inner wall of the driven wheel.

8. The drive control assembly of claim 1, 2, 3, 4, 5, 6 or 7, wherein the driven wheel forms a set of driven teeth, wherein the driven teeth of the driven wheel form a driven face, wherein the angle of inclination β of the driven face is less than 90 degrees.

9. The transmission control assembly of claim 5, wherein the driving end of the control member defines a mounting portion and the operating handle defines a mounting aperture, wherein the mounting portion of the driving end is shaped and sized to fit within the mounting aperture of the operating handle.

10. The transmission control assembly of claim 9, wherein the mounting portion of the drive end is cross-shaped, quincunx-shaped, star-shaped, or saw-tooth shaped.

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